Automobile-cooler.



R. L. GLASS & H. S. WALKER.

AUTOMOBILE COOLER.

APPLICATION FILED DEG. 1e, 1910.

Patented Aug. 20, 1912.

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ATTO R N EY L. L. GLASS L H. s. WALKER.

AUTOMOBILE COOLER.

APPLICATION FILED DEG. 16,1910.

Patented Aug. 20, 1912.

2 SHEETS-SHEET 2.`

ATTO R N EY 'onrrnn srAIrEs PATENT OFFICE.

ROBERT L. GLASS AND HARRY s. WALKER, or coavALLrs, OREGON; SAID WALKER.

" AssIGNoE. 'ro SAID GLASS.

AUTOMOBILE-COOLER;

incense.

Specication of Letters Patent.

Patented Aug. 20, 1912.

Application filed December 1G', 1910. Serial No. 597,698.

To all whom t may concern.:

Be it known that we, ROBERT L. GLASS and HARRY S. VALKER, citizens of the United States, residing at- Corvallis, in the county of Benton and State of Oregon, have nvented a new and useful Automobile-Cooler, of which the following is a specification.

This invention has reference to improvements in cooling means for automobiles, and its object is to provide a means whereby the ordinary' cooling system' may be supplement-ed at the will of the operator, so that in theevent of the engines being loaded to or near their full capacity the temperature of the cylinders of the engines may be maintained at the desirable lowV point without the necessity of the constant presence of a cooling system of a capacity sutlicient to take care of occasionally large demands upon the engines.

1n accordance with the present invention there is provided a cooling System which may be of ordinary character, and be capable of properly cooling the engines under the more frequently employed loads, and such cooling system is supplemented by another cooling system so related to the first named cooling system as to cause a lowering of its normal temperature .to counter-act higher temperatures due to the higher loading of the engines.

The invention will be best understood from a consideration of the following kdetailed description taken in connection with the accompanying drawings forming a part of this specification, with the understanding, however, that while the showing of the drawings is illustrative of a practical form of the invention, the latter is susceptible of various 'modifications while retaining the salient features of the invention.

In the drawings Figure 1 is a perspective view of the bonnet of an automobile showing the inventionapplied. Fig. 2 is a. diagram illustrating the circulatory arrangement of the cooling system. Fig.1 3 is an elevation of an ammonia pump and driving means therefor used in connection with the invention. Fig. 4 is a plan View ofthe structureof Fig. 3. Fig. 5'is a diametric section through a portion of the ammonia pump,

and largely indicative, and may be taken as typical of any automobile engine wherein the cooling of the engine cylinders is brought about by the circulation of asuitable cooling medium through cooling jackets surrounding the engine cylinders, but it will be understood that the present invention is applicable to any other type of engine cooling means, it being common practice to employ water as a coolingagent or streams of air directed against radiating tins, or oil carried about the engine cylinders and like the water directed to a suitable radiator whereby the heat absorbed from the engine by the circulating medium is dissipated. Since the use of water as a cooling medium is common, Y

other cooling means may be employed.

In Fig. 2 there is indicated a radiator 2 which may be of any of the well known types, and on one side this radiator is connected by a pipe the cylinders 1 and on the other side this radiator is connected by a pipe 4 to a valve 5 from which latter there is branched a pipe 6 to another valve 7 and this last named valve is connected by a pipe 8 to a pump 9, such as is commonly employed in the circulating systems of automobiles. The pump 9 is connected by a pipe 10 to the side of the water jacket system of the engine 1 remote from the connection therewith of the pipe 3.

As so far described the circulatory system with the exception of the valves 5 and 7 is of the-ordinary type and is usually confined within abonnet 11 shown in Fig. l,

this bonnet constituting part of an autocustomary, the front. of the bonnet is pro- Ivided with a grating 12, through which air -may pass to the radiator, or this grating may be considered as part of the radiator itself, these features differing in dierent types of automobiles.

Arranged in front of the radiator 2 orx 3 to the water jackets ofv aov the grating 12 are coolers 13, 14 made up of series of pipes 15 and headers 16, 17 respectively, the pipes 15 being upright and in parallel relation one to the other, and tbe headers 16 and 17 being arranged horizontally considering their relation to the automobile. The coolers 13'and 14 are armaterial, such as 1s commonly used in am ranged in parallel relation oneto the other and to the radiator 2 or grating 12 in such position that when the automobile is 'traveling, air will pass by the coolers 13, 14 and thence to the radiator 2.

While it is`not necessar to the working of the present invention that there be two coolers 13,14, sincey one may under some circumstances answer the purpose, it is preferred to use two of such coolers and thereby obtain a large heat absorbing surface by which air in' its passage through them 'becomes chilled before reaching the radiator 2. 'Adjacent to the bonnet 11 is a brine tank 18 such as is used in connection with ammonia refrigerating plants, and within this tank there is located a coil 19 of pipe having at o-ne end a continuation 20 connected to the valve 7,' while at the other end this coil 19 is coupled to a valve 21, and from this last named valve there leads a pipe 22 to the valve 5.

Withinthe brine tank 18 there is lodged another coil 23 connected at one end to a pipe 24, and at the other. end to a pipe 25. The pipe 24, in the particular arrangement shown, is connected at the end remote from the coil 23 -to one of wthe headers 17 of one ofthe coolers, say the cooler 13. The pipe 25 is connected at the end'remote-fro1n the coil 23 to a valve 26 which in turn is connected toa receiver 27 coupled through a Avalve 28 to an` ammonia supply tank 29.

The receiver 27 is coupled by a pipe 28*IL to 'the cooler 14, in the particular instance shown by way of the header 17 of said cooler, and this pipe` 28L is provided with a valve 29. n

The header 16 of the cooler 13 is connected by a pipe 30 to an ammonia pump 31 and tlie latter is also connected by a pipe 32 to the header 16 of the cooler 14.

The ammonia pump may be of any4 appropriate. construction, but as shown comprises an appropriate cylinder open at one end and at t-he other end provided with` a head 33 through which are ports controlled by valves 3'4, 35, respectively, the valve 34 constituting the inlet valve to the interior of the pump and the valve 35. constituting the outlet valve therefor, and the v ports controlled by these valveslead into couplings 36 which are connected to the pipes 30 and 32, respectively.

Within the cylinder of the pump there is a piston comprising two plates 37, 38separated by a spacing ring 39v and confining between them a packing ring 40 of suitable monia pumps and bearing against the inner vwlls'hof the pump cylinder. There is also provided a piston rod 41 formed at the end within the pump with a shoulder 42 bearing againstthe plate 37 and with a stem 43 passed through the plate 37 and threaded -ward that of the other, and these tlanges are in embracing relation to a standard 47ma`cle `fast to the cylinder of the pump Landa-provided von the edge toward the piston y'rod/,41 with rack teeth 48. The ianges 46 carry 4set screws 49 adapted" to engage'tilling-in,

strips 50 between the flanges 46 and therear edge of that portion of the standard 47 containing the rack teeth 48.

Mounted between the'eheek plates 45 by 0' 40. The piston rod v means of a pivot pin or bolt 51 is a lever 52 having formed on one edge a segmental gear 53 in engagement with the rack teeth 48, bein held thereto 'by the flanges of the chee' plates and the filling-in strips 50. The lever 52 has a long arm` on the side of the pivot pin 51 remote from the segmental gear 53, and to this'long arm ofthe lever there is connected a pitman 54 formed of two members connected by a turn-buckle 55 so that the length of the pitman may be adjusted at will. The end of the pitman 54 remote from that connected to the leverl 52 is connectedby a wrist pin 56 to a gear wheel 57, 'and this gear wheel 57 is in mesh with a pinion 58 on a shaft 59 which may constitute lthe power shaftof the engine l, this shaft usually carrying a fly-wheel 60, or if need be more than one flywheel. It is lnot mandator .that the pump 31 should be driven from t e engine shaft in the manner shown, but may bedriven in any suitable manner. Since it is not necessary that lthe ammonia pump should be driven at all times while the engine is running, a clutch indicated at 61 may be interposed between the shaft 59 and the pinion 58, and as such clutch may be of vany suitable type, it is simply typified in the drawings, without any attempt to show any special structure. The valves 5 and 7 have their valve stems provided with rock' arms 62, 63, respectively, and these arms are connectedV by respective 'links 64, 65 to a common operating member 66 in turn connected to alink 67 whichI may extendto a point within easy reach of the operator, so that the valves 5 and 7 may be manipulated simultaneously when desired.

The headers 16 are connected by pipes 68 to gages 69, so located as to be readily `observable by the operator.

Let it 'be assumed that thev engine 1 is runmng under conditions where the cooling action of the radiator is sufficient. Under these circumstances the valves 5 and 7 may be 'set by the operator in a position whereby there is established a circulation from the engine 1 through the pipe 3,-to the radiator 2, and thence back by the pipe 4', valve 5,

pipe 6, valve 7, pi 10 to the engine. uppose that the cooling effect of the radiator 2 is insutlicient to maintain the cooling medium circulating through the Water jackets of ,the engine atthe desired lovv temperature, as, for instance, when the engine is Working under heavier load'and more heat is generatedin the engine cylinders. Under these circumstances thc operator may manipulate the link 67 in a manner to move the valves 5 and 7 so as tocogple the pipe 4 to the pipev 22 and the pipe 8 to the pipe 20, cutting out the pipe 6. There is now established a 'circulatory systemfrom the engine 1 through the pipe 3 to the radiator 2, thence by the pipe 4 to the pipe 22 through the coil 19, thence by the pipe 20 to the pipe 8 and pump 9, returning to the engine by way of the pipe 10. When this path' for4 the cooling medium is established, the ammonia pump 31 must be in action and consequently may then be cou.

pled up to the engine to .bedriven thereby, and the pump 31 will condense the ammonia, driving it through the cooler 14 into the receiver 27, thence by Way of the pipe 25 to the coil 23 Within the brine reservoir 18, Where it may expand to chill the brine, and thence the ammonia Will travel by the pipe 24 to the cooler 13 and back by the pipe 30 to the pump. The cooling medium is chilled at the brine tank to a materially lower temperature than by the radiator 2',

, so that the engine may be chilled to a lower temperature,

or if a greater degree of heat is established tained at the desired lower temperature, which is aV materially.` lower temperature than would be producedby the radiator 2 alone under the circumstances assumed.

While the coolers 13 and 14 operate in the refrigerating system as condensers for the ammonia, their normal temperature may be materially less than that of the radiator 2 when the latter is in action, or even than the air passing by the coolers 13 and 14, and ultimately striking the radiator 2, so. that the air reaching the radiator 2 may be in turn chilled before reaching such radiator and the heat dissipating citect of the radiator` 2 be thereby enhanced.

It is feasible to maintain the ammonia pump in operation during the entire time the automobile engine is running, so that `air passing to the radiator 2 is chilled by the coplers or condensers 13 and 14, and the brine or compound Within the tank 18 may be maintained at a suiiiciently low temperature so as to become effective immediately to the cooling medium when directed through the coil 19, the amount of power needed for maintaining the'ammonia pump.

in constant action during the running of the automobile being so smallas to be negligible.

The reservoir 29- is provlded for admite 8, pump 9 and pipe Qvalves in the pipes,`

at the engine it may be mainy included in said pipes,

ting fresh supplies of ammonia from time to time as may be needed tothe ammonia circulatory system. The valves 21, 26 and 29 provide for the regulation of the iow ,of ammonia through the ammonia system as may bedesired.

' The receiver 27 may be provided AWith-an indicating tube 70 whereby the quantity of liquid ammonia Within the receiver may be ascertained at any time.

What is claimed is v 1. The combination with an explosion e181- gine, of a circulatory cooling system therefor including a heat dissipating radiator, an auxiliary chllling means for the cooling medium, and means for at Will directing the cooling medium through the heat dissipating radiator iary chilling means or-for including the auxiliary chilling meansin the circulatory cooling system of the engine.

2. A circulatory cooling system for eXplosion engines including a heat dissipating radiating means, a by-pass J,included in the cooling system, means for directing the cooling medium through the'by-pass, and chilling means for the cooling medium including a portion of the by-pass. l y

3. A cooling system for explosion engines comprising circulatory pipes, ing means connected to said pipes, spaced a by-pass connected to valves, and chilling and controlled by\th` ation to a portion of means in operative re lthe by-pass.

4. A coollng system for automobiles comprising circulatory pipes, radiating means included in said pipes, from the circulatory pipes, valves at the junction of the by-pass pipes and the circulatory pipes for controlling the flew of cooling medium, a chilling tank incloslng a portion of the by-pass plpes, and an ammonia yrefrigerating lsystem including the chilling tank.

5. A cooling system for automobiles comprising circulatory pipes, radiating means by-pass .pipes leading from *theV circulatory pipes, ,valves v'atthe junction of the by-pass pipes and the circulatory pipes-for controlling the flow of `cooling medium, a chilling tank inclosing a portion of the by-pass pipes, and an ammonia refrigerating system 'including the chilling tank, said ammonia refrigerating system also including condensing means in operaheat dissipatby-pass pipes leading tive relation to the radiating means of the circulatory system connected with the engine for cooling the latter.

6. Av cooling system for explosion engines comprising circulatory pipes for a cooling med1um, a radiator included therein, spaced valves in said circulatory pipes, by-pass pipes connected to said valves and including a coil, a brine tank lncloslng said coil, an

expansion coil in the brine-tank, pipes connected 'to said expansion coil, an ammonia pump, condensers and connections vbetween the. cndensers and the last named pipes.

7.-A cooling system for automobile engines of the explosion type comprising a circulatory system including a heat dissipating radiator, a renfrigerating system having" condensing means in operative relation to the radiator to chill air passing thereto, refrigerating means included in the refrigerating system,and a by-pass from the cooling system having a portion in operative relation to the refrigerating means in the refrigerating system.

8. The' comblnation With an explosion en-v gine, ofr a cooling system therefor comprising a circulatory systelnfor a cooling medium including a heat dissipating radiator and the jacket portions of the engine, and a refrigerating system independent of the circulatory cooling system ofthe engine, said refrigerating system including a compresslon pump and a refrigerating portion, the latter being in heat absorbing relation to the circulatory cooling system of the engine.

9. A cooling system for explosion engines comprising a circulatory system for a cool- 1ng medlum including a heat dissipating radiator, a refrigerating system having a rerlgeratmg means 1n operative relation to the clrculatory system, and condensing means in heat absorbing relation to the `heat radiator of the. circulatory system.

10. A cooling system for automobile engines of the explosion type comprlslng a circulatory system provided with a heat radiator in position to be engaged by air -gines of the explosion type comprising a circulatory system provided With a heat radiator in position to be engaged by air,

streams caused by the travel of the automobile, a refrigerating system having condensing means also in position to b e engaged by air streams caused by the travel of the automobile, refrigerating means lncluded in the refrigerating system in operative re lation to the circulatory system, and means for including or excluding the refrigerating means with relation to the circulatory system at will.

In testimony, that We claim the foregoing as our own, we have hereto aliXed our signatures the presence of two Witnesses.

AROBERT L. GLASS.

HARRY s; WALKER.

Witnesses: l

MENTOR HOWARD, JAMES BLODGETT. 

